Vacuum-Compatible Radial Ball Bearing for Semiconductor Crystal Grinders from Japan
Radial ball bearing with dry lubricant for vacuum chamber crystal grinders in semiconductor production. Falls under HTS 8482.10.5064 as other radial bearing. Eliminates hydrocarbon outgassing critical for float zone crystal growth.
Duty Rate — Japan → United States
19%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide bake-out test results proving <10^-8 torr partial pressure compatibility
• Specify ID/OD tolerances to ±1µm for spindle alignment in grinders
• Include conflict minerals declaration for tantalum in hybrid bearings